package com.itheima.controller;


import com.alibaba.dubbo.config.annotation.Reference;
import com.itheima.constant.MessageConstant;
import com.itheima.entity.Result;
import com.itheima.service.MemberService;
import com.itheima.service.ReportService;
import com.itheima.service.SetmealService;
import com.itheima.utils.DateUtils;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.io.OutputStream;
import java.math.BigDecimal;
import java.util.*;

@RestController
@RequestMapping("/report")
public class ReportController {

    @Reference
    private MemberService memberService;
    @Reference
    private SetmealService setmealService;
    @Reference
    private ReportService reportService;

    @RequestMapping("/getMemberReport")
    public Result getMemberReport() throws Exception {
        Map<String, Object> map = new HashMap<>();
        List<String> list1 = new ArrayList<>();

        Calendar calendar = Calendar.getInstance();
        calendar.add(Calendar.MONTH, -12);
        for (int i = 0; i < 12; i++) {
            calendar.add(Calendar.MONTH, 1);
            Date date = calendar.getTime();
            list1.add(DateUtils.parseDate2String(date, "yyyy.MM"));
        }
        map.put("months", list1);

        List<Integer> list2 = memberService.findMemberCountByMonths(list1);
        map.put("memberCount", list2);
        return new Result(true, MessageConstant.GET_MEMBER_NUMBER_REPORT_SUCCESS, map);
    }

    @RequestMapping("/getSetmealReport")
    public Result getSetmealReport() {
        Map<String, Object> data = new HashMap<>();
        try {
            List<Map<String, Object>> setmealCount = setmealService.findSetmealCount();
            data.put("setmealCount", setmealCount);

            List<String> setmealNames = new ArrayList<>();
            for (Map<String, Object> stringObjectMap : setmealCount) {
                String value = (String) stringObjectMap.get("name");
                setmealNames.add(value);
            }
            data.put("setmealService", setmealNames);
            return new Result(true, MessageConstant.GET_SETMEAL_COUNT_REPORT_SUCCESS, data);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_SETMEAL_COUNT_REPORT_FAIL);
        }
    }

    @RequestMapping("/getBusinessReportData")
    public Result getBusinessReportData() {
        try {
            Map<String, Object> data = reportService.getBusinessReportData();
            return new Result(true, MessageConstant.GET_BUSINESS_REPORT_SUCCESS, data);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
    }

    @RequestMapping("/exportBusinessReport")
    public Result exportBusinessReport(HttpServletRequest request, HttpServletResponse response) {
        try {
            Map<String, Object> data = reportService.getBusinessReportData();
            String reportDate = (String) data.get("reportDate");
            Integer todayNewMember = (Integer) data.get("todayNewMember");
            Integer totalMember = (Integer) data.get("totalMember");
            Integer thisWeekNewMember = (Integer) data.get("thisWeekNewMember");
            Integer thisMonthNewMember = (Integer) data.get("thisMonthNewMember");
            Integer todayOrderNumber = (Integer) data.get("todayOrderNumber");
            Integer thisWeekOrderNumber = (Integer) data.get("thisWeekOrderNumber");
            Integer thisMonthOrderNumber = (Integer) data.get("thisMonthOrderNumber");
            Integer todayVisitsNumber = (Integer) data.get("todayVisitsNumber");
            Integer thisWeekVisitsNumber = (Integer) data.get("thisWeekVisitsNumber");
            Integer thisMonthVisitsNumber = (Integer) data.get("thisMonthVisitsNumber");
            List<Map<String, Object>> hotSetmeal = (List<Map<String, Object>>) data.get("hotSetmeal");

            //获取xlsx模板文件的绝对路径
            String filePath = request.getSession().getServletContext().getRealPath("template") + File.separator + "report_template.xlsx";
            //根据模板创建xlsx表格
            XSSFWorkbook excel = new XSSFWorkbook(new FileInputStream(new File(filePath)));
            //读取第一个工作表
            XSSFSheet sheet = excel.getSheetAt(0);

            XSSFRow row = sheet.getRow(2);
            row.getCell(5).setCellValue(reportDate);

            row = sheet.getRow(4);
            row.getCell(5).setCellValue(todayNewMember);//新增会员数（本日）
            row.getCell(7).setCellValue(totalMember);//总会员数

            row = sheet.getRow(5);
            row.getCell(5).setCellValue(thisWeekNewMember);//本周新增会员数
            row.getCell(7).setCellValue(thisMonthNewMember);//本月新增会员数

            row = sheet.getRow(7);
            row.getCell(5).setCellValue(todayOrderNumber);//今日预约数
            row.getCell(7).setCellValue(todayVisitsNumber);//今日到诊数

            row = sheet.getRow(8);
            row.getCell(5).setCellValue(thisWeekOrderNumber);//本周预约数
            row.getCell(7).setCellValue(thisWeekVisitsNumber);//本周到诊数

            row = sheet.getRow(9);
            row.getCell(5).setCellValue(thisMonthOrderNumber);//本月预约数
            row.getCell(7).setCellValue(thisMonthVisitsNumber);//本月到诊数

            int rowNum = 12;
            for (Map<String, Object> map : hotSetmeal) {
                String name = (String) map.get("name");
                Long setmeal_count = (Long) map.get("setmeal_count");
                BigDecimal proportion = (BigDecimal) map.get("proportion");
                String remark = (String) map.get("remark");
                row = sheet.getRow(rowNum++);
                row.getCell(4).setCellValue(name);//套餐名称
                row.getCell(5).setCellValue(setmeal_count);//预约数量
                row.getCell(6).setCellValue(proportion.doubleValue());//占比
                row.getCell(7).setCellValue(remark);
            }

            OutputStream out = response.getOutputStream();
            response.setContentType("application/vnd.ms-excel");//代表的是Excel文件类型
            response.setHeader("content-Disposition", "attachment;filename=report.xlsx");//指定以附件形式进行下载
            excel.write(out);
            out.flush();
            out.close();
            excel.close();
            return null;
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
    }
}
